I had a problem with the light controller and my p...

Since your still Vegging you will be fine. I typically run even my photos 18 sometimes 24 hours for a couple weeks once they're strong enough from seedlings. So it's really on grower preference. You may find that this works good for you. Sometimes the best solutions are by accent. Don't stress it.

It's fine.... Lots of people run 24 hour veg periods all the time. You don't want a lot of fluctuations in flower but veg is fine as long as you're consistent for the most part.

If it’s an auto flower 24 hrs of light wouldn’t cause much harm. If it’s a photo period plant, it’s better that this happened during the veg stage vs in flowering. I don’t think it’s overly detrimental though. I would just make the proper adjustments to your equipment and light schedule and carry on as usual. The worst thing that could happen is it may herm on you. But what’s done is done, it is what it is. Best of luck going forwards.